I don’t exactly follow the above either, but I believe fixed point is meant in a different sense here, as in a function f(x) such there a point x0 exists where

I don’t exactly follow the above either, but I believe fixed point is meant in a different sense here, as in a function f(x) such there a point x0 exists where x0=f(x0). https://en.m.wikipedia.org/wiki/Fixed-point_theorem https://en.m.wikipedia.org/wiki/Fixed-point_theorem